Question

simplify (x+y) - (y+z) -(x-y)​

Answer 1

Answer:

-y-z

Step-by-step explanation:

=x+y-y-z-x+y

By grouping

x-x+y-y-z+y

=-y-z

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Answer 2

Step-by-step explanation:

x+y-y-z+x-y

x+x+y-y-y-z

2x²+(-3y³)-z

2x²-3y³-z